BEIJING, June 4 (Xinhua) -- An earthquake measuring 5.5 on the Richter scale jolted 5km WSW of Volcano, Hawaii at 01:50:48 GMT on Monday, the U.S. Geological Survey said.

The epicenter, with a depth of -1.14 km, was initially determined to be at 19.4053333 degrees north latitude and 155.2843333 degrees west longitude.